FBG sensors for process and structural health monitoring of a small type III composite overwrapped pressure vessel for unmanned aerial vehicle

In this work, fibre Bragg grating (FBG) sensors were embedded in a 1-litre type III composite overwrapped pressure vessel (COPV) for an unmanned aerial vehicle (UAV), during its manufacturing for process and structural health monitoring (SHM). A single optical fibre having eight FBG sensors was fixed around an aluminium liner to form a grid network. The carbon fibre/epoxy composite layers were wound on top of it with a winding machine. The FBG sensors were able to follow the developed strain during winding, making it an important quality control tool. The same sensors were used to monitor impact tests, where the distances between real and predicted locations varied between 17 and 56 mm.ANI -H2020, projeto AC

Energia elétrica e indústria de equipamentos

O artigo aborda o Setor Elétrico e as suas relações com outros setores da economia.Revista do Serviço Público (RSP), ano 43, vol. 114 n. especial, 206-211 p.Número padronizado: v. 43, n. especial (1987)Administração PúblicaISSN eletrônico: 2357-8017ISSN impresso: 0034-924

Girl Scout Obesity Prevention Program

The lack of information and many misconceptions are to blame for the lag in decreased obesity rates. A program that combines exercise and nutritional education is the basis for a successful program.Fall 2011Accompanied by video fil

Data from: How temperature shifts affect parasite production: testing the roles of thermal stress and acclimation

1. Changes in the magnitude and frequency of temperature shifts with climate change will influence species interactions if species have differential acclimation responses. For example, if parasites acclimate to temperature shifts faster than their hosts, as might be expected due to their smaller sizes and faster metabolisms, temperature variability could lead to increased infection. However, this assumption might not hold if benefits of acclimation are counteracted by energetic costs or thermal stress, underscoring the need for empirical efforts to assess how temperature variability will influence host-parasite interactions. 2. We used an array of replicate incubators to test how temperature shifts from five acclimation temperatures (13-25°C) to five performance temperatures (16-28°C) influenced release of infective stages by the trematode parasite, Ribeiroia ondatrae, from its snail intermediate host (Helisoma trivolvis) at four time points after a temperature shift. 3. Initially, parasite release was higher at warm temperatures and increased temporarily after infected snails were shifted to higher temperatures, particularly for hosts acclimated to cooler temperatures. However, these effects were transient, such that parasite release at warm temperatures declined steadily over the seven days following the shift. Warmer temperatures also increased snail mortality. 4. Parasite release was strongly influenced not only by ambient temperature but also by the thermal history of the host. Prior acclimation to warm temperatures reduced parasite release at warm performance temperatures, contrary to the beneficial acclimation hypothesis. Rather, the observed pattern was likely driven by: (1) energetic costs of prolonged exposure to high temperatures (“thermal stress”) or (2) parasites’ capacity to “store” infectious stages at cooler temperatures. 5. The time-dependent nature of thermal effects on parasite performance highlights the importance of considering the amplitude and frequency of temperature variability for understanding future changes to disease dynamics

SnailShedDataforDryad

Laboratory-raised Helisoma trivolvis snails were held at one of 5 acclimation temperatures (13-25 deg C) for 11 days prior to being moved to one of 5 performance temperatures (16-28 deg C) for 7 days. Some snails were exposed in the laboratory to Ribeiroia ondatrae, and parasite release was measured at several time-points before and after the temperature shift. Please see paper methods for more details

Creación y validación de un instrumento para el seguimiento de pacientes con enfermedad cerebrovascular

Se realizó un estudio para crear y validar un instrumento para el seguimiento de pacientes con enfermedad cerebrovascular, y determinar las variables necesarias para evaluarlos y establecer procedimientos para obtener un puntaje y estratificación por grupos que permitan una clasificación pronóstica y evolutiva de nuevos casos. Se analizó una muestra multicéntrica, de 1 218 enfermos, por métodos estadísticos: V de Cramer. Detector Automático de Interacciones, Chi cuadrado, regresión logística, método de Spearman, escalamiento óptimo, análisis factorial, etc., sobre bases de datos EXCEL transferida al paquete estadístico para Ciencias Sociales. Se obtuvo un instrumento manual y 2 implementados en sistema computadorizado: clínico y general, con porcentajes correctos de clasificación superiores a 90 y válidos en resultado global con 90,09; 92,98 y 94,14 %, respectivamente. Los puntajes y clasificación se realizaron sobre la base de los coeficientes obtenidos en un intervalo de 0-1. Resultaron 3 grupos de riesgo: bajo (vivo sin discapacidad: 0 £ puntaje £ 0,33), medio (vivo con discapacidad 0,33 £ puntaje £ 1), algunos clasifican directamente por interacciones. Se obtuvo un instrumento de rigor científico cuanticualitativo, único en el país, de fácil aplicación, para atender pacientes con enfermedad cerebrovascular y, sobre esta base tomar decisiones para ejecutar una práctica médica de mayor calidad.A study was conducted to create and validate an instrument for the follow-up of patients with stroke. The necessary variables to evaluate these patients were determined and procedures were established to obtain a score and a stratification by groups that allow a prognostic and evolutive classification of the new cases. A multicenter sample of 1 218 patients was analyzed by statistical methods, such as: Cramer’s V, automatic interaction detector, Chi square, logistic regression, Spearman’s method, optimum scaling, factorial analysis, and others, on EXCEL database transferred to SPSS. A manual instrument and 2 computer-generated tools: a clinical and a general one with correct percentages of classification over 90 and validated according to global result with 90.09; 92.98 and 94.14 %, respectively, were attained. The scores and the classification were made on the basis of the coefficients observed in an interval from 0 to 1. 3 risk groups were obtained: low (live without disability: 0£score £ 0.33), mean (live with disability: 0.33£ score £ 1). Some patients were directly classified by interactions. An instrument of scientific quantitative and qualitative rigor, unique in the country and easy to apply was obtained to give attention to patients suffering from stroke and, on that basis, to make decisions aimed at performing a medical practice of higher quality

Data from: Host and parasite thermal acclimation responses depend on the stage of infection

1. Global climate change is expected to alter patterns of temperature variability, which could influence species interactions including parasitism. Species interactions can be difficult to predict in variable-temperature environments because of thermal acclimation responses, i.e. physiological changes that allow organisms to adjust to a new temperature following a temperature shift. 2. The goal of this study was to determine how thermal acclimation influences host resistance to infection and to test for parasite acclimation responses, which might differ from host responses in important ways. 3. We tested predictions of three, non-mutually exclusive hypotheses regarding thermal acclimation effects on infection of green frog tadpoles (Lithobates clamitans) by the trematode parasite Ribeiroia ondatrae with fully replicated controlled-temperature experiments. Trematodes or tadpoles were independently acclimated to a range of ‘acclimation temperatures’ prior to shifting them to new ‘performance temperatures’ for experimental infections. 4. Trematodes that were acclimated to intermediate temperatures (19–22 °C) had greater encystment success across temperatures than either cold- or warm-acclimated trematodes. However, host acclimation responses varied depending on the stage of infection (encystment vs. clearance): warm- (22–28 °C) and cold-acclimated (13–19 °C) tadpoles had fewer parasites encyst at warm and cold performance temperatures, respectively, whereas intermediate-acclimated tadpoles (19–25 °C) cleared the greatest proportion of parasites in the week following exposure. 5. These results suggest that tadpoles use different immune mechanisms to resist different stages of trematode infection, and that each set of mechanisms has unique responses to temperature variability. Our results highlight the importance of considering thermal responses of both parasites and hosts when predicting disease patterns in variable-temperature environments

Altman et al. 2016 JAE trematode acclimation data

Data from the trematode acclimation experimen